The main objective of The One English Grammar Handbook: Part 1 - A1 to B1 is to provide you a valuable tool for enhancing your English Grammar. This book contains all the necessary theory to take you from A1 English level to B1, clearly explained and with examples included. Furthermore, each chapter has unique exercises which are organized based on topic and difficulty: A1, A2 and B1. Obviously, at the end of the book you will find the answer keys. Within this book you can find theory and exercises for all difficulty levels regarding a multitude of topics like: singular and plural nouns, definite and indefinite articles, pronouns, adjectives, adverbs, verb tenses, modal verbs, the passive, prepositions, gerunds, infinitives, reported speech, sentence structure, conditionals, phrasal verbs and many more...